2010年-2014年永康市聚四氟乙烯不粘锅卫生质量分析

Health quality analysis of polytetrafluoroethylene nonstick cookware in Yongkang city from 2010 to 2014

目的了解永康市聚四氟乙烯不粘锅的卫生质量状况,为指导聚四氟乙烯不粘锅生产、销售及相关部门的监督管理提供依据。方法 2010年-2014年对本市聚四氟乙烯不粘锅生产厂家进行随机抽样,按标准将试样用洗涤剂洗净,用自来水冲净,再用水淋洗3遍后晾干,备用。浸泡液按接触面积每平方厘米加2 ml,如试样为容器,则加入浸泡液至2/3~4/5容积进行浸泡,采用滴定法测定样品中的高锰酸钾消耗量,化学法测定蒸发残渣的含量,石墨炉原子吸收光谱法测定铬的含量,氟离子选择电极法测定氟的含量,并对检测结果进行分析。结果 5年共监测聚四氟乙烯不粘锅320份,261份合格,平均合格率为81.6%。主要质量问题为4%乙酸浸泡液蒸发残渣,铬和氟项目不合格,这三项的合格率均低于90%。结论今后应进一步加强永康聚四氟乙烯不粘锅的监管力度,以确保消费者身体健康。

Objective To find out the health quality and trends of polytetrafluoroethylene nonstick cookware in Yongkang and provide scientific basis for the supervision and management of relevant governmental departments and for production,sales of polytetrafluoroethylene nonstick cookware. Methods From 2010 to 2014,nonstick cookware samples were randomly selected from polytetrafluoroethylene cookware manufacturers. The samples were washed by detergent,running water and rinse three times by water,then aired to use. Soak liquid was 2 ml per square centimeter according to the contact area,If the samples were containers,then the immersion liquid was added to the 2 /3- 4 /5 volume to soak. The potassium permanganate consumption in the sample was determined by titration method. The content of the residue was determined by chemical method. The content of chromium was determined by graphite furnace atomic absorption spectrometry. The content of fluorine was determined by fluoride ion selective electrode method. Then the test results were statistically analyzed. Results 320 polytetrafluoroethylene nonstick cookwares were monitored in the past five years,and 261 samples were qualified,with the average qualified rate of 81. 6%. The main unqualified items were 4% acetic acid soaking liquid evaporation residue,chromium and fluoride with the qualified rate lower than 90%. Conclusion The polytetrafluoroethylene nonstick cookware supervision should be further strengthened to ensure the health of consumers in the future.